ABB MCCB series molded case circuit breaker: the well-known Isomax S series and the newly developed Tmax series (in 2003 international design, with its famous tech and environmental). Furthermore, Tmax has a very high level of performance more: small size, easy to install. Coupled with double insulation, ensure operator safety. Because of its superior performance and integrity release Tmax circuit breakers and accessories, can be used in the main power distribution and sub-distribution of AC and DC power plant. Tmax Tmax series feature high technology, using the most advanced design and simulation tools to ensure optimal performance in the smallest form factor. Because interrupter using the latest technology and to accelerate opening speed, Tmax series of circuit breakers can greatly limit let-through energy, reduce peak current, thus avoiding overheating and reduce electric stress. Furthermore, Tmax series of circuit breakers use a completely common and standard accessories, and has many advantages: reducing inventory, convenient and flexible and easy to use. They Jieke matching (using current up to 500A) is the new residual current releases. (RC221, RC222, RC223) MCCB applications in industrial and urban low-pressure plant, operating current from 1 - 1000A. They are installed in the DC and AC power distribution cabinet, for motor protection (motor control centers), generator protection, capacitor protection and end users. ABB designed two kinds of series of molded case circuit breaker: the well-known Isomax S series and the newly developed Tmax series (in 2003 international design, with its famous tech and environmental). Furthermore, Tmax has a very high level of performance more: small size, easy to install. Coupled with double insulation, ensure operator safety. Because of its superior performance and integrity release Tmax circuit breakers and accessories, can be used in the main power distribution and sub-distribution of AC and DC power plant. Tmax Tmax series feature high technology, using the most advanced design and simulation tools to ensure optimal performance in the smallest form factor. Because interrupter using the latest technology and to accelerate opening speed, Tmax series of circuit breakers can greatly limit let-through energy, reduce peak current, thus avoiding overheating and reduce electric stress. Furthermore, Tmax series of circuit breakers use a completely common and standard accessories, and has many advantages: reducing inventory, convenient and flexible and easy to use. They Jieke matching (using current up to 500A) is the new residual current releases. (RC221, RC222, RC223) MCCB applications in industrial and urban low-pressure plant, operating current from 1 - 1000A. They are installed in the DC and AC power distribution cabinet, for motor protection (motor control centers), generator protection, capacitor protection and end-users